Systems

RAID5 mdadm array disappearing after reboot

Fix RAID5 array disappearing after reboot by manually assembling the mdadm components and updating the configuration file for persistence.

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Using Extended Desktop or Virtual Desktop for a Second Monitor TV in Another Room

Configure Windows extended desktop mode to display independent content on a second monitor TV in another room.

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Grant LuCI Internet Access to OpenWRT Router/Switch

Resolve OpenWrt internet connectivity issues by configuring WAN DNS, firewall forwarding rules, and LAN gateway settings via LuCI.

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Compacting C: Drive: Understanding the Differences

Prevent C: drive performance degradation caused by CPU-intensive on-the-fly NTFS compression.

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TPM-only Bitlocker: Protecting Multiple Hard Drives in Stolen Computer Cases?

Configure BitLocker on all secondary internal drives to prevent data exfiltration if a stolen computer's hard drives are physically removed.

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Finding the Path of slurmd Binary in HPC Systems

Resolve the which: no slurmd error by locating the daemon in /usr/sbin or /usr/bin using sudo find.

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Mounting QNAP: A Comprehensive Guide to MacOS Staking Long-Term

Resolve macOS SMB connection failures and ensure persistent QNAP NAS mounting by configuring static IPs, enabling SMB3, and setting up automatic login reconnects.

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PowerShell: Write-Host Not Working - Expected Solution

Resolve PowerShell Write-Host not displaying text by fixing execution policies, stream redirection conflicts, and invisible console color settings.

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Managing Incremental Thin Set Files Based on Date Modified Rules

Delete .~bak~ files older than a specified number of days using the Linux find command to reclaim disk space.

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Powershell equivalent of "dir /a"

Use Get-ChildItem -Force to list all files and directories, including hidden and system items, in PowerShell.

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Wi-Fi Desktop Fails to Resolve Multiple Websites (DNS Adapter Issue?)

Fix Wi-Fi DNS resolution failures on Realtek RTL8723BE adapters by flushing the cache and configuring public DNS servers.

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Stubborn EXE continues to ask for admin rights even after changed require Administrator as Invoker manifest

Resolve persistent UAC elevation prompts for unsigned executables by using Task Scheduler or unblocking the file instead of invalidating the binary with hex edits.

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PC Occasionally Loses Wired LAN Connection

Resolve Windows 10 PC wired LAN connection drops by disabling network adapter power saving, updating drivers, and resetting the TCP/IP stack.

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Win10 Guest on VirtualBox: USB Device Not Detected despite Installed Extension Packs - Setup Tips for USB Filter

Resolve Windows 10 VirtualBox USB detection failures by configuring explicit USB filters to redirect hardware from the host OS to the guest VM.

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Moving Cache Location for CapCut on Windows

Resolve C: drive storage warnings by redirecting CapCut cache to a secondary drive.

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Can I Use SMB2/SMB3 on a Windows XP PC?

Resolve Windows XP SMB2/SMB3 incompatibility by isolating legacy systems or using FTP/NAS workarounds to avoid SMB1 security risks.

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Windows 10: Find out the exact reason for an unresponsive application

Resolve unresponsive Windows 10 applications by diagnosing resource contention and deadlocks using Task Manager, Resource Monitor, Procdump, and DebugDiag.

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Windows Added Unexpected Visual Studio Shortcut to Start Menu

Resolve unexpected Visual Studio shortcuts in the Windows Start Menu by deleting residual links from user and public directories or managing components via the installer.

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Hauppauge MyTV App Not Found on Google Play Store: How to Control Hauppauge Cordcutter V2 via App on Debian/MX-Linux

Resolve Hauppauge MyTV app unavailability on Linux by installing Tvheadend to control the Cordcutter V2 tuner via desktop software.

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DFS Replication and NTFS File Replication Service Errors in Hyper-V VMS MB2011 DC and AWS EC2 Instance 2016 DC

Resolve DFS Replication and NTFS File Replication Service errors between Hyper-V and AWS EC2 by verifying service status, ensuring port 445 connectivity, and synchronizing system clocks.

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MySQL Server Won't Connect to Docker Container on Ubuntu 22.04

Resolve MySQL connection failures in Docker on Ubuntu 22.04 by fixing port mappings, network configurations, and user permissions.

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Setting Window Hover Functionality in Windows 11

Resolve the lack of native hover-to-focus window activation in Windows 11 by configuring Microsoft PowerToys or AutoHotkey scripts.

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Resolving Stop Cross-User Authentication Prompts with Rock PI on Debian 12

Resolves cross-user authentication prompts for systemctl commands on Debian 12 Rock PI by configuring Polkit rules to grant specific users permission to manage systemd units.

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How to Use Linux Mint and FFmpeg Software to Stabilize a Video

Stabilize shaky video footage on Linux Mint using FFmpeg's vidstabdetect and transform filters without third-party GUI tools.

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Perform Lookup on Two Files

Merge two files by matching keys using join, awk, or Perl to append reference data to query records efficiently.

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How to Make APT Install Always Ask for Confirmation?

Prevents accidental silent package installations by forcing APT to always prompt for user confirmation.

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Troubleshooting Samba Server with Nmap

Resolve Samba server visibility issues by scanning ports 445 and 137-138 with Nmap to detect active services and identify firewall or SELinux blocks.

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How to Simulate Larger SSD Sector Size in Windows 11 for 16k Sector Drives

Prevents performance degradation and data corruption caused by manually simulating 16k sector sizes in Windows 11.

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Disk Read Error Occurred During Gparted Resize/Move Process on CPartition: Power Outage

Repair filesystem corruption and resolve disk read errors in GParted after a power outage by running fsck on the affected partition.

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Stop queued replay of Windows notifications while AFK

Disable Windows 11 notification replay to prevent a flood of queued alerts when returning from being away.

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Why Won't Visual Studio 2022 Run Default CMake Projects?

Resolve Visual Studio 2022 CMake project failures by installing the Desktop development with C++ workload, selecting the correct generator, and clearing corrupted cache files.

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Automating Command Logging Sessions in PuTTY: A How-To Guide

Automate PuTTY SSH sessions and capture command logs using plink.exe with key authentication or Expect scripts.

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Permissions Issue when Creating Directory in WSL2: A Tech Support Guide

Resolve permission denied errors when creating directories in WSL2 by adjusting ownership, using native Linux paths, or modifying Windows NTFS ACLs.

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Enabling Keyboard for Windows-10 Hyper-V Installation: A Comprehensive Guide

Resolve unresponsive keyboard and mouse input in Windows 10 Hyper-V virtual machines by enabling Enhanced Session Mode and verifying Integration Services.

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Concatenating TXT Files: A Simple Solution on Windows

Merge multiple text files into one on Windows using the copy command with wildcards.

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How to Disable or Reactivate Personal Vault in Windows 11?

Resolve frequent authentication prompts by closing Personal Vault in Windows 11 without deleting files or losing access to encrypted data.

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Unable to Install, Update WSL2 within Virtual Desktop - No Network - Azure Virtual Desktop

Resolve WSL2 installation failures in offline Azure Virtual Desktop by manually deploying kernel and installer packages.

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Understanding NAT Masquerading in iptables: A Comprehensive Guide

Resolves connectivity failures for devices on private networks accessing the internet by configuring dynamic source NAT and enabling IP forwarding.

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How to Set USB Ethernet Interface Connection Priority in Ubuntu

Resolve unpredictable network routing in Ubuntu by setting lower Netplan metrics for USB Ethernet to prioritize it over Wi-Fi or internal adapters.

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SDDM Failure to Load: Troubleshooting and Solutions

Resolve SDDM login screen failures by fixing corrupted configs, display server conflicts, and service status errors.

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USB Flash Not Working After PC Turned off While Formatting

Fix a USB flash drive corrupted by interrupted formatting using Disk Management or diskpart to rebuild the partition table.

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Restoring Broken Windows 10 Programs with the Windows.old Folder

Resolves broken Windows 10 programs by using SFC, DISM, or repair installs instead of the unsafe Windows.old folder.

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Windows 10: Opening Photo Windows Shows Another Photo Instead

Resolve Windows 10 Photos app displaying incorrect images by clearing the app cache and verifying file associations.

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Increasing Display Resolution with Microsoft Basic Display Adapter on Windows Server 2019 (AMD Drivers)

Resolve low display resolution caused by the Microsoft Basic Display Adapter on Windows Server 2019 by installing official AMD drivers.

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Syncing Multiple Source Folders to Multiple Destination Folders: A Solution

Resolve filename collisions and data integrity issues when mapping multiple source folders to specific destination folders using rsync or PowerShell.

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Troubleshooting Wi-Fi: Adding Loopback Address to Wifi Interface in Windows

Resolves Wi-Fi connectivity issues by resetting the TCP/IP stack instead of incorrectly adding a loopback address to the interface.

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Setting up Nginx: Conf File Not Picking Alphabetic Order for URLs that Don't Match Requests

Resolve Nginx URL routing issues caused by misunderstanding location block precedence rules instead of alphabetic file order.

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iCal Preference to Show Fewer Weeks in Month View Unavailable on macOS High Sierra

Resolve missing Show Additional Weeks preference in macOS High Sierra Calendar by using zoom controls, switching to Day or Week views, and narrowing the sidebar.

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How to Extract Part of a Variable in Tech Support: ABCD

Extract specific characters from a variable in bash using parameter expansion or the cut command.

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Linux Kernel cgroup v2 and SCFS Scheduler: CPU Throttling and Multiple Threads

Resolve CPU throttling and latency spikes in multi-threaded Linux applications by monitoring cgroup v2 cpu.stat metrics.

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